html,body {
    height: 100%;
}
body {
    margin: 0px;
    position: relative;
}
.vr-container {
    position: relative;
    height: 100%;
}
.vr-container .vr-wrapper {
    width: 100%;
    height: 100%;
}

.vr-container .open-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    padding: 10px 15px;
    border-radius: 6px;
    display: flex;
    background: cadetblue;
    color: #fff;
    cursor: pointer;
}

.btn-modal {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: #373737;
    border-radius: 4px;
    opacity: 0.95;
    width: 100%;
    height: 100%;
    font-size: 12px;
    color: #d8d8d8;
}
.btn-modal .wrapper {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.btn-modal .header {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 18px 0px;
    border-bottom: 2px solid #4b4b4b;
}
.btn-modal .wrapper .close{
    position: absolute;
    right: 10px;
    top: 10px;
    width: 24px;
    height: 24px;
    background: url("close.png") no-repeat;
    background-size: cover;
    cursor: pointer;
    z-index: 100;
}
.btn-modal .wrapper .ring {
    position: absolute;
    top: 0px;
    width: 100%;
    height: 75%;
}
.btn-modal .wrapper .desc {
    position: absolute;
    padding: 15px 20px;
    text-align: left;
    left: 0px;
    bottom: 15%;
}
